Lubricant cooling device



Jan. 28, 1936. E, A cHAMBERs LUBRICANT COOLING DEVICE Filed Jan. '7,1955 WIL l ATTORNEY WITNESS Patented Jan. 278, 'Y 1936 LUBRICANT COOLINGDEVICE Edwin A. chambers, st.

' Canada.

Thomas, Ontario,

Application January 7, 1935,Y serial No. 752

7 Claims. This invention relates to lubricant cooling devices, and itsgeneral object is to provide a device which is primarily designed foruse with an internal combustion engine for cooling and retaining the oilin the crank case thereof at a lo' operating temperature which not onlyprolongs the lubricating qualities of the oil, but allows for the use ofoil of light viscosity without fear of it l breaking down or thinningunder the action of mentality of a flange 4 and screws as shown, isa

heat, therefore the use of my device results'in easy starting vof theengine in cold weather and proper lubrication thereof under all runningconditions.

, Afurther object of the invention is to provide a. lubricant coolingdevice for an internal combustion engine or the like, that is entirelyautomatic in its operation, easy to install, simple in construction,inexpensive to manufacture and extremely eflcient in operation andservice.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behere-v inafter fully described, illustrated in the accompanying drawingand specically pointed out in the appended claims.

In' describing my invention in detail, reference will be had to theaccompanying drawing wherein like characters denote like orcorresponding parts throughout the several views, and in which:

Figure 1 is a longitudinal sectional view taken through the device whichforms the subject matter of the present invention.

Figure 2 is a fragmentary side elevation with parts broken away andillustrating a part of the working mechanism of my device.

Figure 3 is a perspective detail view illustrating the oat latchv andpart of the tripping means for actuating valves of my device.

Figure 4 is a perspective view illustrating the remaining parts of thetripping means.

Referring to the drawing in detail, and particularly to Figure 1, itwill be noted that my device includes a plurality of vertically arrangedtubes I that are held in group association by up`l per and lower plates2 and 3 which extend laterally beyond` the outermost tubes and thelatter extend into openings arranged in the plates.

The plates maybe of any shape, it depending' upon the shape of my deviceand while the latter is preferably oval shape, it may be cylindrical oreven of rectangular formation, with the tubes arranged accordingly.

Secured to the lower plate through the instrureceptacle 5 in the form ofa cap, with the plate 3 (Cl. 12S- 196) providing a closure for thetop'thereof. `The receptacle acts in the capacity of a float chamber ina manner which will be presently described. Secured' to the bottom wallthereof and disposed in communication with the chamber is a nipple 6which may act as the inlet and outlet means for the device, particularlyin the form as shown, but in any event theA nipple 6 has secured theretoa pipe line I that extends to the oil reservoir within the crank case ofan internal combustion engine. Y

Secured to and rising from the upper plate 2 is a frame which ispreferably made from a single piece of metal and includes a right anglebody provided with an upper horizontal portion 8 and a verticalportion9, the latter terminating into a flange at its lower end having anopening I0 arranged centrally therein and an apertured ear toreceive ascrew"or the like for securing the frame to the plate 2. Cooperatingwith the vertical portion 9 for securing the frame to the plate, arearms I I that depend from the horizontal portion and terminate at theirlower ends in apertured ears having openings therein to receive screwsor the like as clearly shown in Figure 2.

The upper horizontal portion of the frame has arranged therein parallelopenings, one of which receives a nipple I2 having a cap I3 secured tothe upper end thereof, and this cap is provided with an opening to theatmosphere. The other opening has secured therein a nipple I4 which inturn has secured thereto one end of a pipe line I5 that extends to andis in communication with the intake manifold of the engine. The nippleI4 has a check valve I6 therein for a purpose which will be presentlyapparent. Y

. .The upper plate 2 has secured thereto a receptacle I1 which issimilar to the receptacle 5 superposed relation with respect to eachother Y and in close proximity.

The nipples I2 and I4 extendthrough the top of the receptacle I'I, andeach of these nipples in fact provides a. valve housing, in thatthelower ends thereof are in the form of valve seats to re- Y ceiveconical valves I9 and 20 Vfor 'closing the nipples as will be apparent.The valves I9 and 2|] are pivotally secured to a lever 2| that ispivoted midway its ends between the arms II, with the result that thevalves will be seated alternately in a manner and for a purpose whichwill be later described.

Suspended in the receptacle 5 through the medium of a rod 22 is a float23. The rod 22 extends through one of the tubes l and has formed on orotherwise secured to its upper end a cross portion 2@ that is mountedfor slidable movement in guide slots 25 arranged longitudinally in wingstrips 2B that are formed on and extend from the vertical portion 9. Thecross portion Z has openings disposed therein adjacent to its ends forreceiving cotter pins to secure the same within the slots, as shown inFigure 2.

The rod 22 extends through the opening IB. Formed on one end of thecross portion 2d is a vertical arm 2l the latter having a slot '28arranged longitudinally therein, to receive one arm of a bell crankshaped dog 29, which is pivoted midway its ends to the vertical portion9 as best shown in Figure il, with its other arm terminating inalignment with a shoulder 3u provided in a slot 3l extendinglongitudinally of and centrally in the vertical portion 9.

The lever 2l has its inner end extending into the slot 3l and secured tothis end is an arched leaf spring 32 that is bent to be provided with aflat free end and is shaped in a manner whereby the flat free end isurged toward the shouldered edge of the slot 3|, so that the free end isreceived by the shoulder at intervals during the operation of my deviceas shown in Figure 4 which likewise illustrates that the free end of thespring is disposed in the path of the dog 2Q when the free end isreceived in the shoulder.

Secured t0 and rising from the plate 2 adjacent to the vertical portion9 of the frame is an inverted U-shaped bracket 33 for the purpose ofpivotally receiving between the arms thereof a lever 35 of a iioat 35.The lever extends into a downturned free end 33 that is normallyarranged in the path of a spring pressed dog 3l, the latter beingpreferably mounted in a slot disposed in the rod 22 and pivoted thereinby a pin 33 which has a strand of resilient wire 3S extendingtherethrough. One end of this wire is wrapped about the rod 22 while itsopposite end extends through an opening in the dog 3l. Therefore the pin38 is not only held associated with the rod 22 by the strand 39, but thedog 3l is spring pressed.

The particular manner of pivoting the lever 2l between the arms Il isimportant, kand it will be noted that the lever is enlarged midway itsends and has extending through the enlarged portion a sleeve 4B throughwhich extends a pin lil, the

latter having its ends journaled in the arms Il,

as shown.

The lever is normally held in the position of Figure l through themedium of a coil spring 42 that has one of its ends secured to the outerend of the lever and the other end to the free end of the horizontalportion with the result that the valve 2i] is normally open and thevalve i9 is normally closed.

Y In the use of my device, in the form as shown,

-. it will be obvious that when the engine is put into operation, aVacuum will be created within the device which will naturally draw thelubricant from the reservoir ofthe engine, up into the chamber 5, tubesl, and into the receptacle or y cap i7. vThis takes place before mydevice is put into action, due to the fact that the downturned free end36 of the lever 34 contacts the dog 31, However, whenthe oil lifts thefloat 35, the end 36 is moved out of the path of thedog .31, which willcause the oat 23 to rise and as the float 23 is secured to the rod 22,the cross portion 24 of the rod will contact the spring 32 and thereforerock the lever 2l to seat the valve 25 and unseat the valve IS, so as toclose the pipe line to the intake manifold and to open the device to theatmosphere, consequently the oil within the device will drain back tothe engine. When the spring 32 is raised, the iat free end thereof isreceived in the shoulder 30, as shown in Figure 4, so as to hold thevalves in the position set forth until all the oil is drained from thedevice. As the oil is returned, the float 23 will drop and this actionwill actuate the dog 29 which moves the free end o-f-thespring? out ofthe shoulder, therefore disposing the lever 2l to its normal positionwith the valves I9 and 2i) arranged as shown and the other partsdisposed accordingly to begin the cycle or" operation just described.

While the nipple E has been referred to as the inlet and outlet means,it may be used only as the outlet means, and in that event the inletmeans will extend from the oil supply to the Vreceptacle i?, or at anyother appropriate place, as will be apparent. posed in a direct linefrom the air currents of the fan of the engine so that as the oil passesthrough the tubes l, it will be materially cooled before being returnedto the crank case.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claims.

What I claim is:

l. A lubricant cooling device for an engine and comprising coolingmeans, means whereby suc- The device is preferably disf.-

tion is created in said device for drawing lubricant from the engine forpassage through the cooling means, and means acting alternately with thesecond mentioned means to break the suction to allow the lubricant todrain back to the engine.

2. A lubricant cooling device for an engine and comprising lubricantreceiving chambers, cooling means in communication with said chambers,means whereby suction is created in said device for drawing lubricantfrom the engine into the Y chambers and through the cooling means, andmeans acting alternately with the suction means to break the suction toallow'the lubricant to drain back to the engine.

3. A lubricant cooling device for an engine and comprising lubricantreceiving chambers, cooling means between the chambers and incommunication therewith, means having connection with the engine tocreate a suction in said device to draw lubricant from the engine intothe chambers and through the cooling means, and means acting alternatelywith the means to create the suction to break the latter to allow thelubricant to drain back to the engine.

4. A lubricant cooling device for an engine and comprising lubricantreceiving chambers, cooling means between the chambers and including agroup of tubes in communication therewith, cooling fins for the tubes,means having connection with the engine to create a suction in saiddevice to draw lubricant from the engine into the chambers and throughthe tubes, and means acting alternately with the suction means to breakthe suction to allow the lubricant to drain back to the engine.

`the chamber and said valves 5. A lubricant cooling device for an engineand comprising lubricant receiving chambers, cooling means including agroup of tubes disposed between the chambers and in communicationtherewith, cooling ns for the tubes, means having connection with theengine to create a suction in said device to draw lubricant from theengine into the chambers and through the tubes, means for introducingatmospheric air into the device, valve means for the means connected tothe engine and the air introducing means respectively, and automaticmeans for actuating the valve means.

6. A lubricant cooling device for an engine and comprising a pair oflubricanthreceiving chambers, cooling tubes between the chambers and incommunication therewith, means for connecting one of said chambers withthe intake manifold of the engine, means for introducing atmospheric airin the last mentioned chamber, a pivoted lever, a valve for controllingthe means connected to the intake manifold, a valve for controlling themeans for introducing air into being pivotally connected to said leverand means for actuating 3 said lever for alternately disposing thevalves into and out of seated positions for creating a suction in saiddevice for drawing lubricant from the engine for passage through thecooling means and to break the suction to allow the lubricant to drainback to the engine.

'7. A lubricant cooling device for an engine comprising a pair oflubricant receiving chambers, cooling tubes between the chambers and incommunication therewith, means having connection with one of saidchambers and the intake manifold of the engine, a check valve in saidmeans,

means for introducing atmospheric air in the last mentioned chamber, alever pivoted in said chamber, a pair of valve members carried by saidlever for alternately controlling the connection to the intake manifoldand the means for introducing air in the chamber, and oat actuatedmeansrfor operating said valves through the medium of the lever, wherebyto alternately draw lubricant from the .engine for passage through thetubes and to allow the lubricant to drain back to the engine.

EDWIN A. CHAMBERS.

